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One mole of an ideal gas is expanded fr...

One mole of an ideal gas is expanded freely and isothermally at 300K from 5L to 10L volume. If `Delta E =0`, then `Delta H` is

A

zero

B

`5 xx 300` cal

C

5 cal

D

`-2 xx 5 xx 300` cal

Text Solution

Verified by Experts

The correct Answer is:
A
When the gas expands freely it means that the opposing pressure is zero. Hence `pDeltaV=0` or `DeltaH=0`
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